[Review] Nitecore MH40S (2x21700, USB-C Rechargeable, Thrower, Wireless remote)

Budda

Enlightened
Joined
Nov 30, 2009
Messages
576
Location
Italy
I received the Nitecore MH40S from Nitecore for the review.

The MH40S is a 2x21700 battery powered flashlight (include in the package you have 2 21700 Nitecore NL2150 5000mAh), featuring a Luminengin G9 LED, with an approximate emitter size of 2 mm^2. The light can be controlled via the two switches on the light, and a remote switch, which is included with the light. The 21700 batteries can be readily charged in the light using a USB C port on the head of the light, supporting quick charge protocol (QC 12V 1.5A); a charger like this, with QC 3.0 standards is included with the light.

The light comes in this box.
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I really like the way the light is presented, and the way the accessories (sheath, remote, lanyard, manual, Velcro remote accessories, USB QC 3.0 charger and USB C cable) are packaged also.
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Before using the light, remember to remove the insulating spacer.
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Here’s the light with the 2 21700 batteries that come in the light: 2 21700 5000mAh Nitecore batteries.
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The MH40S is 256 mm long, with a tube diameter of 25.8 mm and a head diameter of 65 mm. The light weights 246 grams, without the batteries. I really like the body of the light, with some circular millings that adds a lot of grip.
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The very small emitter in the deep smooth reflector, a combo that will surely give a lot of throw.
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The tailcap I U shaped and allows easy access to the tailcap switch, while allowing the light to tailstand.
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The tailcap threads are triangular cut and anodized, allowing for physical lockout.
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At the head we have an electronic backlight switch, and on the other side of the head the USB-C port for charging the batteries.
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The remote has 2 electronic switches, a double stage electronic squared switch on the high part of the remote, and a longer one on the remaining portion of the remote. The backside is covered in velcro
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The light in the sheath, which has mole attachement in the back
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The UI
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Budda

Enlightened
Joined
Nov 30, 2009
Messages
576
Location
Italy
Beamshots
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Trees at 100 meters. No suprises here, the small emitter paired with a smooth reflector gives a very focused beam, suitable for long distances.

Output and runtime.
Measured with the 2 Nitecore 21700 5000mAh NL2150 included with the light.
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My thoughts
The light is well built and finished.
I like the simple interface. The levels are well spaced and the regulaton is good. There’s plenty of runtime with the 2 21700 cells.
This is not the first 21700 powered light I review, but it’s the first 2x21700 light I had my hands on. I was surprised on how it looks like a regular 2x18650 light, and how the higher weight is better distributed, making the light be less head heavy (typical of classic 2x18650 lights with a bigger head).
The wireless remote is a nice addition, with the possibility to attach it to clothes or Velcro surfaces, use the integrated loops to secure it to other points, or use the optional weapon attachments.
I wish the light had shortcuts for lowest or highest output, but given the purpose of this light and its intended use, I’m fine with the chosen UI; especially when considering the remote.
My sample has a cool white tint at the max output, but turns yellowish/greenish the lower the output.
 
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